MD Settings: remove unsupported routes from guest-mode.

chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview
  * 'Settings page for managing bluetooth properties and devices. This page
  * just provodes a summary and link to the subpage.
  */
 
@@ skipping 52 matching lines @@
     adapterState_: {
       type: Object,
       notify: true,
     },
 
     /** @private {!Map<string, string>} */
     focusConfig_: {
       type: Object,
       value: function() {
         var map = new Map();
-        map.set(
-            settings.Route.BLUETOOTH_DEVICES.path,
-            '#bluetoothDevices .subpage-arrow');
+        if (settings.routes.BLUETOOTH_DEVICES) {
+          map.set(
+              settings.routes.BLUETOOTH_DEVICES.path,
+              '#bluetoothDevices .subpage-arrow');
+        }
         return map;
       },
     },
 
     /**
      * Interface for bluetooth calls. May be overriden by tests.
      * @type {Bluetooth}
      * @private
      */
     bluetooth: {
@@ skipping 119 matching lines @@
           if (chrome.runtime.lastError) {
             console.error(
                 'Error enabling bluetooth: ' +
                 chrome.runtime.lastError.message);
           }
         });
   },
 
   /** @private */
   openSubpage_: function() {
-    settings.navigateTo(settings.Route.BLUETOOTH_DEVICES);
+    settings.navigateTo(settings.routes.BLUETOOTH_DEVICES);
   }
 });